Has My Head Unit Died?

[BradRT]

can anyone diagnose whats wrong with my head unit?


i've got a pioneer 3500MP headunit and 4 standard speakers in my MK1.
its always worked fine with no problems but when i got into my car and switched the unit on last week, it still plays the music but you can barely hear it because it is 90% distorted and a high pitch noise is comin from it too.
its the same from all 4 speakers whether its on radio or cd.


can anyone help?

 

[Dink]

dodgy earth by the sounds of it

get a piece of wire find a good earth and stick it in the earth terminal in the iso block

 

[leekirlew]

check all your speakers wiring aswell. One of the channels on my pioneer has just died, trying to fix it as we speak

 

[BradRT]

but the earth/speaker wiring wouldnt have just come loose would it?

dink, any idea which one is the earth terminal?

 

[Dink]

black one??

 

[BradRT]

just checked all cables at the back and all seems fine. also, the ground wire is still intact and goes to wherever halfords installed it 2 and a half years ago

any other suggestions?

 

[leekirlew]

sounds like the head units given up. only other thing you can try is to wire a speaker directly to the head unit whilst its out just to check it.

 

[fungusman]

dodgy earth by the sounds of it

get a piece of wire find a good earth and stick it in the earth terminal in the iso block

ditto, plus check all connections.